Hazardous Area Telephone Call Waiting No Overall Depth 4 in Speakerphone No Overall Height 12 in Voicemail No Overall Width 8 3/4 in Volume Control Yes Indoor/Outdoor Usage Indoor Outdoor Standards cUL Listed US20140826-E357080 FCC Part 15+ Class A IEC 61000-6-2 2005 Industry Canada ICES-003 Class 3 Number of Handsets 1 Number of Lines 1 Cord Length 20 ft Mounting Location Wall Caller ID No Enclosure Material Plastic Enclosure Rating NEMA 3R Includes Enclosure Yes